Author(s) |
Roy, S. C.; Sonawane, J. V.; Rathore, N. S.; Pabby, A. K.; Janardan, P.; Changrani, R. D.; Dey, P. K.; Bharadwaj, S. R.
|
Pseudo emulsion based hollow fiber strip dispersion technique (PEHFSD) is the first of its kind ever explored in radioactive environment for the extraction of uranium from acidic process streams. Permeation of U(VI) was investigated as a function of various experimental variables such as hydrodynamic conditions (flow rates of pseudo-emulsion and feed phase), concentration
of U(VI) in the feed phase, concentration of tri-n-butylphosphate (TBP),
HNO3 concentration in feed phase, O=A ratio and 0.01M
HNO3 as stripping agent in pseudo-emulsion phase. The mass transfer coefficient was calculated from the experimental results and a model has been presented for determining mass transfer characteristics. PEHFSD has been demonstrated for
separation/recovery of uranium from oxalate supernatant waste generated during plutonium precipitation by oxalic acid. PEHFSD and HFSLM (hollow fiber supported liquid membrane) performance has been compared in order to analyze the efficiency of the technique.
|